metaadattár

metaadattár is a specialized term used in the field of information science, particularly within Hungarian contexts, to describe a metadata repository or data catalog that aggregates descriptive information about data assets across an organization. It serves as a central hub where metadata—data about data—such as file names, authors, creation dates, formats, and access rights—are collected, stored, and made searchable. The objective of a metaadattár is to enhance data discoverability, improve data governance, and support compliance with regulations such as GDPR or ISO/IEC 11179.

The concept originated in the late 1990s when organisations began to realise that while data volumes were growing, the ability to locate and understand these data sets lagged behind. By formalising metadata as a managed resource, institutions could standardise terminology, enforce data quality, and enable automated data lineage tracking. In many Hungarian universities and research institutes, metaadattáros technológia is integrated with existing data lake architectures, providing scholars with a unified interface to search across heterogeneous research datasets.

Common features of a metaadattár include taxonomy implementation, controlled vocabularies, semantic enrichment, role‑based access control, and integration with data cataloging tools such as Informatica, Collibra, or open‑source solutions. While the term itself is Hungarian, the underlying principles align with global best practices in metadata management, data cataloging, and Master Data Management (MDM).